The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 11, 2022

Filed:

Oct. 28, 2019
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Guohan Hu, Yorktown Heights, NY (US);

Naigang Wang, Yorktown Heights, NY (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01F 7/06 (2006.01); H01F 41/04 (2006.01); H01F 27/28 (2006.01); H01F 17/00 (2006.01); H01F 3/10 (2006.01);
U.S. Cl.
CPC ...
H01F 41/046 (2013.01); H01F 3/10 (2013.01); H01F 17/0033 (2013.01); H01F 27/2804 (2013.01); H01F 2003/106 (2013.01);
Abstract

A planar magnetic structure includes a closed loop structure having a plurality of core segments divided into at least two sets. A coil is formed about one or more core segments. A first antiferromagnetic layer is formed on a first set of core segments, and a second antiferromagnetic layer is formed on a second set of core segments. The first and second antiferromagnetic layers include different blocking temperatures and have an easy axis pinning a magnetic moment in two different directions, wherein when current flows through the coil, the magnetic moments rotate to form a closed magnetic loop in the closed loop structure.


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